Table of Contents

1 Front Matter; 2 Summary; 3 1 Free-Ranging Horses and Burros in the Western United States; 4 2 Estimating Population Size and Growth Rates; 5 3 Population Processes; 6 4 Methods and Effects of Fertility Management; 7 5 Genetic Diversity in Free-Ranging Horse and Burro Populations; 8 6 Population Models and Evaluation of Models; 9 7 Establishing and Adjusting Appropriate Management Levels; 10 8 Social Considerations in Managing Free-Ranging Horses and Burros; 11 9 A Way Forward; 12 Appendix A: Biographical Sketches; 13 Appendix B: Previous National Research Council Reports on Free-Ranging Horses and Burros; 14 Appendix C: Presentations to the Committee; 15 Appendix D: Questions and Requests from the Committee; 16 Appendix E: Herd Management Areas; 17 Appendix F: Pairwise Values of Genetic Distance (Fst)